Trane Ascend ACR Series User Manual

102
AC-SVX001A-EN
Table 28. Diagnostics — communication (continued)
Diagnostic
Name
Affects
Target
Severity
Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level
Comm Loss:
External Auto/
Stop
Chiller Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
External
Chilled/Hot
Water Setpoint
External
Chilled Water
Setpoint
Special Action
Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Chiller shall discontinue use of the External
Chilled Water Setpoint source and revert to the next
higher priority for setpoint arbitration
Remote
Comm Loss:
External Ckt
Lockout Ckt1
None Info Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. MP will hold the last lockout state (enabled or
disabled) that was in effect at the time of comm loss
Remote
Comm Loss:
External Ckt
Lockout Ckt2
None Info Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. MP will hold the last lockout state (enabled or
disabled) that was in effect at the time of comm loss
Remote
Comm Loss:
External
Demand Limit
Setpoint
External
Current Limit
Setpoint
Special Action
Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Chiller shall discontinue use of the External
Current limit setpoint and revert to the next higher
priority for Current Limit setpoint arbitration
Remote
Comm Loss:
External Ice
Building
Command
Ice Making
Mode
Special Action
Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Chiller shall revert to normal (non-ice
building) mode regardless of last state
Remote
Comm Loss:
Fan Inverter
Fault Ckt1
None Info Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Fan Inverter
Fault Ckt2
None Info Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period.
Remote
Comm Loss:
Fan Inverter
Speed Cmd
Ckt1
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Fan Inverter
Speed Cmd
Ckt2
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Fan Inverter
Speed Cmd
Shared Ckt1&2
None Info Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. This is an info warning, as it is conceivable
that the circuit may run without the center shared
fan deck working if there are many other coils/fans
on the circuits
Comm Loss:
Heat/Cool
Switch
Heat Mode
Special Action
Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Chiller shall revert to normal (non-ice
building) mode regardless of last state
Remote
Comm Loss:
Ice-Making
Status
Ice-Machine
Special Action
Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Chiller shall revert to normal (non-ice
building) mode regardless of last state
Remote
DDiiaaggnnoossttiiccss

Trane Ascend ACR Series Specifications

General

Brand	Trane
Model	Ascend ACR Series
Category	Chiller
Language	English